| 摘要 |
On the driving and/or driven side of an infinitely variable cone pulley transmission the pulley discs are urged against a shoulder of the transmission shaft by the force of a helical coil spring exerted on the disc pair in axial direction. The annular surface of the shoulder which faces the cone discs and the annular surface of an extension of the hub of the cone disc which faces the shoulder are used as the bearing surfaces or races of a thrust bearing. The thrust bearing comprises roller elements mounted rotatably on a support ring and having the form of oblate spheroids. By this particular form the frictional sliding movement between the roller elements and the bearing surfaces, resulting from the wobble movement of the pulley disc, is turned into a purely rolling motion. |
